[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Network Packet Flow in HVM
Hi there, I am working on a project in which I have to track a packet flow from dom0 to domU. I know how this is done in case of Paravirtualized (PV) guest domain. In case of PV's split model, dom0 (backend) and domU (frontend) share I/O channel that is setup during the domU boot and it is used to copy packets between two domains. In case of HVM domain, there is no shared memory between dom0 and domU then how this packet copying is being performed? I know QEMU-dm is being used in dom0 to emulate the network interface for domU. If there is no memory then how domU get packets from dom0 and vice-versa? Does Xen pass actual packet from dom0 to domU which is very costly? It would be really helpful if you could let me know exact packet flow as it would help me understand the networking subsystem. I tried finding some document but there are no publicly availabe documents that describe network virtualization and packet flow in case of HVM domain. I would really appreciate your reply and pointers. Thanks, Abhinav Share files, take polls, and make new friends - all under one roof. Go to http://in.promos.yahoo.com/groups/ _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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